John Rhys-Davies has spoken frankly about his time on the '90s sci-fi series Sliders, describing it as "the single biggest missed opportunity" of his life.

The 71-year-old played Professor Arturo on the cult show - but he exited midway through the third season.

Rhys-Davies told Digital Spy that he left after clashing with the show's writers - and described the scripts for Sliders as "incomprehensible gibberish".

Advertisement - Continue Reading Below

"It's hard to rewrite on the hoof when you've got a network that wants you to say the words in the script," he explained.

"I would go to [the writers] and complain. But they would say, 'John, why don't you just say the words as written?' and I'd say, 'I'll tell you what, I will actually say the words as written when you can actually write intelligent sentences!'"